342 
BULLETIN OF THE BUREAU OF FISHERIES 
small surface chromatophores on sides and beneath head. The lateral line is well 
marked by about 45 chromatophores, starting over anterior portion of air bladder. 
Subsurface chromatophores appear over forward part of stomach region, becoming 
very numerous and heavy over both lobes of air bladder, and are continued behind 
over dorsal aspect of intestine to vent. About 12 surface chromatophores, also, 
occur along intestine. The lateral stomach series is continuous with the subsurface 
gill series. Ventral chromatophores start between pectorals and run in a most ir- 
regular, usually single but sometimes double line to vent. Anteriorly, these ventral 
spots are rather large, but as the line approaches the vent, they become very small 
and numerous. From the vent backward a double series of large stellate chroma- 
tophores extends on ventral ridge to end of body (about 22). The pigmented caudal 
has many small chromatophores concentrated at its base but not in great enough 
numbers to indicate a caudal spot. Two subsurface longitudinal series parallel with 
the lateral line are faintly distinguishable through the myomeres, one halfway be- 
tween dorsal and median lines, and the other between median and ventral lines. 
These last series were first seen in the 2-day stage. 
13.2-millimeter stage . — Total length, 13.2; standard length, 11.5; length to vent, 
8.1; head, 3.0; snout, 0.55; diameter of eye, 1.1; greatest depth before vent, 2.3; 
depth behind vent, 1.4; length to dorsal, 6.0; to anal, 8.2 millimeters. Myomeres, 
21 to vent plus 15 + behind. Dorsal, 8; anal, 9. Differs from preceding stage in the 
completion of the vertical fins, further development of ventrals, and more adult 
aspect of the head. 
Other specimens of 18.5 and 21.3 millimeters in collection show no essential 
changes in pigmentation. 
BREEDING 
The common shiner spawns during June and the first half of July on shallow 
gravel bottom. Breeding activity is interestingly recorded by Dr. G. C. Embody 
and W. J. Hamilton, jr. (Greeley, 1927). Many adults of Notropis cornutus frontalis, 
seined on July 9, 1928, at Grand Island, contained ripe ova. Spawning of the latter 
upstream subspecies was observed by members of the survey group on June 17, 1928, 
in Little Buffalo Creek and on July 9 in Silver Creek (Greeley, 1928). 
24. Notemigonus crysoleucas crysoleucas (Mitchill). Golden shiner. [Notemi- 
gonus crysoleucas (Mitchill). Jordan, Evermann, Clark, p. 115.] 
RECORD OF CAPTURE 
This species is commonly taken in weedy, sheltered bays of Lake Erie and in 
many weedy streams and ponds. 
